2 * Copyright (c) 1995 Bruce D. Evans.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * $FreeBSD: src/sys/i386/include/md_var.h,v 1.35.2.4 2003/01/22 20:14:53 jhb Exp $
30 * $DragonFly: src/sys/platform/pc32/include/md_var.h,v 1.20 2006/11/07 20:48:15 dillon Exp $
33 #ifndef _MACHINE_MD_VAR_H_
34 #define _MACHINE_MD_VAR_H_
37 #include <sys/types.h>
41 * Miscellaneous machine-dependent declarations.
44 extern vm_paddr_t Maxmem;
45 extern u_int atdevbase; /* offset in virtual memory of ISA io mem */
46 extern void **bcopy_vector;
47 extern void **memcpy_vector;
48 extern void **ovbcopy_vector;
49 extern int busdma_swi_pending;
50 extern int (*copyin_vector) (const void *udaddr, void *kaddr,
52 extern int (*copyout_vector) (const void *kaddr, void *udaddr,
54 extern void (*cpu_idle_hook)(void);
55 extern u_int cpu_exthigh;
56 extern u_int cpu_fxsr;
57 extern u_int cpu_high;
59 extern u_int cpu_procinfo;
60 extern char cpu_vendor[];
61 extern u_int cyrix_did;
63 extern int nfs_diskless_valid;
64 extern char sigcode[];
67 typedef void alias_for_inthand_t (u_int cs, u_int ef, u_int esp, u_int ss);
75 void busdma_swi (void);
76 void cpu_gdinit (struct mdglobaldata *gd, int cpu);
78 void cpu_setregs (void);
79 void cpu_switch_load_gs (void) __asm(__STRING(cpu_switch_load_gs));
80 void cpu_heavy_restore (void); /* cannot be called from C */
81 void cpu_lwkt_restore (void); /* cannot be called from C */
82 void cpu_idle_restore (void); /* cannot be called from C */
83 void cpu_kthread_restore (void);/* cannot be called from C */
84 void cpu_exit_idleptd (void); /* disassociate proc MMU */
85 void cpu_exit_switch (struct thread *next);
86 void doreti_iret (void) __asm(__STRING(doreti_iret));
87 void doreti_iret_fault (void) __asm(__STRING(doreti_iret_fault));
88 void doreti_popl_ds (void) __asm(__STRING(doreti_popl_ds));
89 void doreti_popl_ds_fault (void) __asm(__STRING(doreti_popl_ds_fault));
90 void doreti_popl_es (void) __asm(__STRING(doreti_popl_es));
91 void doreti_popl_es_fault (void) __asm(__STRING(doreti_popl_es_fault));
92 void doreti_popl_fs (void) __asm(__STRING(doreti_popl_fs));
93 void doreti_popl_fs_fault (void) __asm(__STRING(doreti_popl_fs_fault));
94 void enable_sse (void);
95 void fillw (int /*u_short*/ pat, void *base, size_t cnt);
97 void i486_bzero (volatile void *buf, size_t len);
98 void i586_bzero (volatile void *buf, size_t len);
99 void i586_bcopy (const void *from, void *to, size_t len);
100 int i586_copyin (const void *udaddr, void *kaddr, size_t len);
101 int i586_copyout (const void *kaddr, void *udaddr, size_t len);
103 void asm_generic_memcpy(void);
104 void asm_mmx_memcpy(void);
105 void asm_xmm_memcpy(void);
106 void asm_generic_bcopy(void);
107 void asm_mmx_bcopy(void);
108 void asm_xmm_bcopy(void);
109 void i686_pagezero (void *addr);
110 void init_AMD_Elan_sc520(void);
111 int is_physical_memory (vm_offset_t addr);
112 vm_paddr_t kvtop (void *addr);
113 void setidt (int idx, alias_for_inthand_t *func, int typ, int dpl,
115 void userconfig (void);
116 int user_dbreg_trap (void);
117 int vm_page_zero_idle (void);
119 #endif /* !_MACHINE_MD_VAR_H_ */